I've pulled all mine out... its a little toasty in the cabin but not bad. I'm planning on gutting the interior come spring and putting in some dynamat which should shield the heat from the cabin some.
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04:14 AM
grkboy707 Member
Posts: 3019 From: Kingsville, MD Registered: May 2009
I suppose the insulation is just to protect from the interior getting "toasty"? Its definitely not for any safety issues? This sounds like a good weekend project, as the insulation looks like a bear mauled it.
I'm not entirely sure as mine was in really bad shape from having mice living in it for the better part of a decade...
I think its there to help protect the hoses and wires hiding underneath it as well. I haven't had any adverse effects from removing it some 6 months ago so I suspect it wont hurt anything.
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07:29 AM
82-T/A [At Work] Member
Posts: 25154 From: Florida USA Registered: Aug 2002
I'm tempted to completely remove the torn up fire wall insulation on my stock 2.8 Anyone done that before? Would it get to hot wiht out it?
Or is their a decent affordable replacement?
I pulled mine a while back. It was starting to get nasty too.
Actually, I pulled it out of the engine bay EXCEPT for the area behind the engine along the firewall. If yours still has it, the insulation also ran along the side of the engine bay as well (over the wheel wells, around the battery area, etc...). I pulled all of that because it just became too nasty. I still have the one along the rear firewall, so I can't really say whether it's a safety feature or not... but my plan (when I pull the motor and re-install it) will be to replace it with something a bit more modern. If you look at what modern cars havem they have a thin insulation with an aluminum sheeting over it to reflect the heat. Of course, you can also paint it with black hi-heat paint.
I'd suggest if you take it out, keep it (even as nasty as it is) to use as a template should you decide to make your own.
Also, I remember SOMEONE, SOMEWHERE made a replacement for this for our Fieros... but I can't seem to find it now...
Sorry, Alibi, there are no wires or hoses running under the insulation.
Also, insulation applied on the engine side of the firewall will be many times more effective than Dynamat installed in the interior. ThermoCool makes a reflective material that is self adhesive, and comes in large sheets. It would be a good choice for replacing the black fiber insulation that came stock.
Sorry, Alibi, there are no wires or hoses running under the insulation.
Also, insulation applied on the engine side of the firewall will be many times more effective than Dynamat installed in the interior. ThermoCool makes a reflective material that is self adhesive, and comes in large sheets. It would be a good choice for replacing the black fiber insulation that came stock.
It is available from JEGS and other suppliers.
Ah, I couldn't remember if there was or not. Whenever I drop my cradle next, I plan on painting the engine bay and doing something about heat shielding but I've been running without it for 7-8 months without ill effects. I'm sure that GM put it there for a reason though...
That fiberglass stuff? I'm pretty sure its mostly for sound deadening.
At least, towards the rear of the car... Strut towers and the sides of the engine bay. The firewall side may serve a bit more for heat insulation, but I'm not going to think about R values after 25 years.
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12:01 PM
dguy Member
Posts: 2416 From: Beckwith Township, ON, Canada Registered: Jan 2003
Also, I remember SOMEONE, SOMEWHERE made a replacement for this for our Fieros... but I can't seem to find it now...
I've never seen a drop-in replacement available to the community, but there's a template available for purchase at fierosails.com which one could use to cut their own replacement material.
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01:05 PM
Mickey_Moose Member
Posts: 7570 From: Edmonton, AB, Canada Registered: May 2001
You should be able to buy replacement mat from an auto body supply. They just call it hood insulation - I picked some up for just over $40 and there was enough there for 3 cars (edit >> not counting sides (strut towers).
Cheers,
[This message has been edited by Mickey_Moose (edited 01-19-2010).]
What will work better is: you can get it from a "Air Conditioning/heating contractor", they use it to build "air Boxes & fiberglass Air Ducts", comes in 4x8 sheets, is 1" thick pressed fiberglass with aluminum on 1 side. heat barrier & sound. can be cut with a "razor knife" & will bend.
Yea I looked at Fiero strore, and West coast fieros and cant seem to find a replacement on the webs site.
I wouldn't buy the one from West Coast Fieros... It's supposed to be one sheet. Mine was received as 6 pieces that look crappy for the money... They don't like to answer the phone either... Just my twenty five cents...
Use the FieroSails pattern and get the material from JC Whitney...
What engine do you have, Roger? Would a 3800SC be too warm? I am looking at changing the insulation in the long term but right now I just want to get the thing running. Mike Gonzalez is doing the conversion and I can't blame him for not liking the dusty present insulation. He doesn't have insulation in his black beauty either.
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11:06 AM
rogergarrison Member
Posts: 49601 From: A Western Caribbean Island/ Columbus, Ohio Registered: Apr 99
What engine do you have, Roger? Would a 3800SC be too warm? I am looking at changing the insulation in the long term but right now I just want to get the thing running. Mike Gonzalez is doing the conversion and I can't blame him for not liking the dusty present insulation. He doesn't have insulation in his black beauty either.
I'm sure a 3800SC runs cooler than a 2.8 or a turbocharged 3.1 (like Roger had).
With a supercharger, you have a fairly cold charge going in... If you install a decklid vent (mustang, six-pack, whatever), I see no reason why it'd be an issue to remove the sound-deadener/insulation.
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12:47 PM
Feb 16th, 2010
Terry_w Member
Posts: 930 From: Fort Worth,TX Registered: Sep 2008
What will work better is: you can get it from a "Air Conditioning/heating contractor", they use it to build "air Boxes & fiberglass Air Ducts", comes in 4x8 sheets, is 1" thick pressed fiberglass with aluminum on 1 side. heat barrier & sound. can be cut with a "razor knife" & will bend.
They sell this at Home Depot here.
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01:12 AM
PFF
System Bot
Oreif Member
Posts: 16460 From: Schaumburg, IL Registered: Jan 2000
Originally posted by skuzzbomer: I'm sure a 3800SC runs cooler than a 2.8 or a turbocharged 3.1 (like Roger had).
With a supercharger, you have a fairly cold charge going in... If you install a decklid vent (mustang, six-pack, whatever), I see no reason why it'd be an issue to remove the sound-deadener/insulation.
No a supercharger makes MORE heat so does a turbo.
FieroX sells them( at least used to) I made my own as well. not hard to do if the engine is out of the way.